Some months ago I posted about a brick wall with a cap. It looks great but materials per running meter (2 meter high) can be 200,000shs. and labor maybe another 100,000shs.
I live next to a quarry, where the stone is used as hardcore under foundations and floors or crushed to make aggregrate. After some dry stack retaining walls I wanted a 2 m high garden wall. I think materials is under 75,000 per running meter. Eventually maybe we can do drystack.
I am continuing on the other side but will try:
-with clay mortar
-stone up 30 cm and then rammed earth.